brenzinger



Feb. 13, 1923,

' J. BRENZINGER SEAMING MACHINE Filled Apr. '7, 1922 INVENTOR Z ATTORNEY enemies lFeh. is, was.

JULIUS BRENZINGEB, OF FAIRFIELD, CONNECTICUT, ASSIGNOR TO THE MAY. Alvis IIACHINE COMPANY, OF BRIDGEPORT, CONNECTICUT, 1-3. CORPORATION 01 CON- NECTICUT.

SEAMING MACHINE.

Application filed April 7, 1922. Serial No. 550,311.

To all whom it may concern: surface having portions 4 of the contour Be it known that I,-JULIUS BRENZINGER, shown in Figs. 9. and a intended to act on a-citizen of the United States, and a resident the straight sides of the container. As will of Fairfield, in the county of Fairfield and be observed the initial curl 5 produced there 55 5 State of Connecticut, have invented certain by, prior to the flattening operation, is relnew and useful Improvements in Seaming atively large. If it is attempted to produce Machines, of which the following is a specia similar curl at the corner of the container fication the metal is likely to buckle or wrinkle be- This invention relates to seaming macause it will occupy a smaller arc after, than 60 chines of the type disclosed in Letters Patent before, seaming. I therefore find it advan No. 836,735 of November 27, 1906 (Reissue tageous to provide the seaming surface of No. 12,668 of July 2, 1907) in which there the roller with portions, as 6, of a different is employed a seaming roller or tool having contour-from that of portions 4-. As shown, an outline complementary to that of a nonportions 6 are narrower and are so shaped 65 circular container to be seamed. as to produce smaller initial curl"? so that In seaming the covers or tops to; non-cirwhen the metal is thereafter flattened it cular containers, such as a rectangular will not wrinkle. Portions f and 6 alternate shaped container with roundedcorners, diftilengthwise of the seaming surface and gradculty has been experienced when seamingthe ually merge into one another as shown in 7 0 corners because the metal at that point is not Fig. 2.

merely curled up and fiattened as at the I claim: straight sides of the container but is also 1. A seaming roller, having an outline compressed or crowded together owing to complementary to that of the outline of the fact. that the metal occupies a smaller non-circular container, provided with a 75 are of a circle after, than before, seaming. seaming surface of different dimensions at For this reason buckling or wrinkling of different portions of its length to thereby the metal is likely to take place. produce a different scann ng a 'tion at the The main object and feature of this incorners of the container than at sides vention is to overcome this difficulty. thereof. so

In the accompanying drawings the in- 2. A seaming roller, having an outline ti i disclosed in a concrete form in complcmentary to that of the outline of a whichnon-circular container, provided with a Fig. l is a plan view of a seaming roller seaming surface haa'ing portions, acting on r t l embOdylng the invention, showing the seam at the straight sides of the con 85 its relation to a container while seaming Said. tamer, of a certain contour, and other percontainer at the corner thereof. tions, acting on ti e seam at the corners of Fig. 2 is an edge view thereof. the container, of a different contour. Fig. 3 is a sectional view on the line 33 3. A seaming roller, having an outline of Fig. 1. complementary to that of the outline of a 90 I is sectional view on the line 4 non-circular container, provided with a of Fig. l. seaming surface having portions, acting on '1. indicates the seaming roller or tool by the seam at the straight sides of the conmeans of wnich the entire seaming operation tainer, of a certain contour to produce a 95- may be carried out, but preferably the intain initial size of curl, and other portions, 95

itiai curling operation only is produced by acting on the seam at the corners of the conthis roller. 2 indicates a non-circular container, of different contour to produce a tainer to which a cover 3 is to be seamed. certain smaller initial size of curh As shown, the roller is of a shape coin- Signed a2: New York. in the countv of plenientary to that of the container, as fully New York and State of New York. this 4th 100 explained in the patent previously referred day of April, 1922. p

to. This roller is provided with seaming JULIUS BRENZINGER. 

